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Control Unit Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GC0109973Courtesy of CHRYSLER GROUP, LLC
Measurement between pins Resistance Voltage Results Correction
Ohms (V)
"4" to "5" 2 - Yes Control unit OK.
No 1. Check for any faulty solenoid or motor electrical connections and repair if necessary.
2. Check for a faulty solenoid and replace as necessary.
"4" to "2" 2 - Yes Control unit OK.
No 1. Check for any faulty solenoid or motor electrical connections and repair if necessary.
2. Check for a faulty solenoid and replace as necessary.
"1" to "2" Greater than
100K		 - Yes Control unit OK.
No Check for shorted Thermal Switch.
"1" to "3" - 12 Yes Control unit OK.
No 1. Check for any faulty solenoid or motor electrical connections and repair if necessary.
2. Check for faulty LV.
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